Cylchwyl Rhostryfan a Rhosgadfan,
- NLW MS 23642B.
- Ffeil
- 1882-1886.
Rhan oPapurau O. Llew Owain
A volume containing minutes, accounts, pasted-in tickets, programmes, press cuttings and other memoranda relating to the Rhostryfan and Rhosgadfan Sunday Schools' literary and musical festival, held annually on Christmas Day between 1882 and 1886.